50 Pack Acoustic Foam Panels 1" x 12" x 12" Sound Proof Foam Panles Soundproofing Noise Cancelling Wedge Panels for Home Office Recoding Studio with 300PCS Double-Side Adhesive

This box fooled me. 50 qty… only 4 inches. Alas, it was over 29”. To my wife I exclaim: another false prophet of sound dampening disappointment. They’ve sold me a pack of micro cloths again and cursed me a 9th time! Nope. I assumed the worse and the package was over 2 feet after expanding (1 sleeve per 25 it seems).There were 10 pads of adhesive dots for the 50 pack, roughly 30 dots per pad = 300 dots / 50 ctIf you use 1 per corner (4) per count of the 50 ct it will take 200 (50x4) and leave you with roughly 100.Do not put the backs of these in your mouth. Seriously. Don’t do it. I thought it was better than tossing it on the floor until I could clean afterwards (used to retaining FOD, etc) so learned I have some kind of sensitivity to these (also why half the stuff says don’t eat - we do dumb things - accidentally I’ve heard). These “seem” good.Once you break the seal - take the main sleeves/pads out at once. I learned how fast they expand and how fast you have to cut the entire bag open instead of just the end because you took out 1 and thought the rest would stay sealed somehow and not magically expand and get stuck in the main bag forcing MORE effort than you even wanted to begin with. Like, UGH - right? Don’t do it.I legit had to lay down after about 3 pads worth of the adhesive dot backs touching my mouth. Seriously, don’t do it. This was 100% an error on my part.Here’s a couple pics for reference. I bought more since this review, so they’re good.

I plastered these all over the wall of my garage behind what would be a hitting screen for a golf simulator. The attachment stickers have done a good job staying stuck to the wall, even with the transition from winter to hot summer conditions. The sound panels have made a big difference in taking some of the bite out of using golf clubs in an enclosed room. They are also helping my drywall stay intact by adding a small layer of padding for golf balls hit hard enough to stretch the screen to the wall.

I wanted to soundproof a room that was excessively echo-ey and could practically hurt your ears, and these helped. They are all a uniform black which is nice so there arent strange odd ones out, and the ridges on them help capture sound more than just a sheet, blanket, or rug. They are thinner than I anticipated, as the measurement is from the tip of a triangle point and down to the flatside, so the dips between the ridges are super thin, so they arent going to be durable if youre looking for that. I like the size of each one being a square foot, it makes them easy to manage and move around, but it can get tedious if you need to cover a large area.After placing them in key areas, the difference when walking from one room, into the echo-proofed room, and back, is noticeable. They work well for noise cancellation, and if you have extra, it doesnt hurt to just pile them over eachother in areas you feel noise is gonna be worst, it does help, even if a little bit. I wouldnt recommend these for someone who is looking for the maximum deluxe quality of sound proofing, but they are great for a quick and easy noise-limiting project. I would recommend anyone buying to just get the 120 pack, as they WILL be smaller and thinner than you think, unless you measure the entire space you plan on filling in. Also, I saw other people complaining about some not filling out to their full size due to the vacuum sealing, and this was true for a couple days for mine until I split all of them from eachother and had them spaced out enough to breathe without being stacked on eachother or on something else, and they all filled out to the same size.I wouldnt say these are the greatest things ever, but if you actually want anything like this, and without blowing an entire budget on just this, I would go with this product and the 120 coount just for safe measure and maximum value.

I wish I had read the lower star reviews before purchasing this "Best Seller"Let's break down the listing:"80 Pack Acoustic Foam Panels 1" x 12" x 12"" (Mostly )True: they are 12 inch by 12 inch and the ones I received were cut straight unlike the ones other reviewers received. The one inch deep dimension is debatable. The way these are cut is not the same as what is shown in some of the pictures, the groove bottom is VERY thin. Note the pic on this review that shows how much light can shine through these."Sound Proof Foam Panles Soundproofing Noise Cancelling" FALSE. I should have known from the typos to stay away from this product. Using a decibel meter I tested these panels and even doubled them up: the reduction or "noise cancelling" barely registered (around 5% reduction when using TWO panels back-to-back with the wedge pattern offset). These absolutely will not soundproof anything. Other reviewers state that they will reduce an echo in a room, but literally any other textile would do the same thing. Buy some curtains: it would look better and cost you less. Wedge Panels for Home Office Recoding Studio with 420PCS Double-Side AdhesiveSure, they are wedge shaped and panels. (then yet another typo) I am one of the many reviewers that also did not get the adhesive stickers in the shipment, I'd think that you're going to need more than 400 stickers as these are very thin, which leads them to being not rigid. I could easily see there being issues with them peeling and falling off of walls. (IF you even get the adhesive)If you still want to try them yourself: be aware that these are sealed in vacuum bags that have all the air removed from them and are incredibly compressed. The moment you unseal them they will expand multiple times over and will be a nightmare to repackage and return.